If you take a JPG, alter it and resave it it will lose image quality! You're better off using an uncompressed format - TIFF, for example. "So, what is the "dpi of the texture" or the "base texture?" 72? 3000?" In this example, the texture consists of 3000 pixels in width by 1915 pixels in height. DPI merely is an indicator (to a printer) of how to scale those pixels. If you keep your texture at 3000 x 1915 and merely change the DPI from 72 dpi to 300 dpi to 1200 dpi to 2 dpi all it won't change the texture - just the way it prints or displays. DPI merely tells the printer "Here's the pixels. Print it so that 72 of them fit on an inch of paper." or "Here's the pixels. Print it so that 300 of them fit into an inch of paper." Obviously the more pixels that the printer can fit into an inch of paper, the finer the detail of the print. However, computer monitors work a bit different than paper.

Before they made me they broke the mold!
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